strongly and stoutly built; sturdy and robust.

strong and brave; valiant

a stalwart knight.

firm, steadfast, or uncompromising

a stalwart supporter of the U.N.

a physically stalwart person.

a steadfast or uncompromising partisan

They counted on the party stalwarts for support in the off-year campaigns.

adjective

cowardly , meek , weak

adjective

athletic , bold , bound , bound and determined , brave , brawny , brick-wall , courageous , daring , dauntless , dead set on , dependable , fearless , forceful , gutsy * , hanging tough , hefty , husky , indomitable , intrepid , lusty , muscular , nervy * , powerhouse , redoubtable , robust , rugged , sinewy , solid , spunky * , staunch , steamroller , stout , stouthearted , strapping , sturdy , substantial , tenacious , tough , unafraid , undaunted , valorous , vigorous , hardy , firm , gallant , mighty , powerful , redoubted , resolute , strong , tireless , upright , valiant